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Graco Inc. 224894 manual

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Table of contents for the manual

  • Page 1

    Instructions–Parts List 308178F ENG Important Safety Instructions Read all warnings and instructions in this manual. Save these instructions. Dynamic Surge Suppressor For use with double-diaphragm pumps and low-pressure reciprocating pumps. For professional use only . Not for use in explosive atmospheres. 100 psi (0.7 MPa, 7 bar) Maximum Fluid Wo[...]

  • Page 2

    2 308178 Symbols W arning Symbol W ARNING This symbol alerts you to the possibility of serious injury or death if you do not follow the instructions. Caution Symbol CAUTION This symbol alerts you to the possibility of damage to or destruction of equipment if you do not follow the instructions. EQUIPMENT MISUSE HAZARD Equipment misuse can cause the [...]

  • Page 3

    3 308178 TOXIC FLUID HAZARD Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin, inhaled, or swallowed. D Know the specific hazards of the fluid you are using. D Store hazardous fluid in an approved container . Dispose of hazardous fluid according to all local, state and national guidelines. D Alw[...]

  • Page 4

    4 308178 Installation System Pressure The maximum fluid working pressure of this surge suppressor is 100 psi (0.7 MPa, 7 bar) at 100 psi (0.7 MPa, 7 bar) incoming air pressure. Never exceed 100 psi (0.7 MPa, 7 bar) fluid or air pressure to the surge suppressor . Do not exceed the maximum working pressure of any component or accessory used in the sy[...]

  • Page 5

    5 308178 Installation The installation shown below is only a guide for selecting and installing system components; it is not an actual system design. Contact your Graco distributor for assistance in planning a system to suit your needs. 0906 KEY A Surge suppressor B Air pressure gauge C Fluid supply line D Fluid outlet line E Air supply line F Husk[...]

  • Page 6

    6 308178 Installation General Information The surge suppressor uses air pressure and a diaphragm to maintain a consistent fluid outlet pressure from a double diaphragm or low-pressure reciprocating pump. During normal flow , the suppressor air pressure and fluid pressure are in equilibrium. A sharp increase in fluid pressure causes the air inlet po[...]

  • Page 7

    7 308178 Operation and Maintenance Operating the Surge Suppressor 1. Be sure the system is properly grounded. Read and follow FIRE AND EXPLOSION HAZARD , on page 3. 2. Check all fittings to be sure they are tight. Be sure to use a compatible liquid thread sealant on all male threads, and do not overtighten the fittings into the pump. 3. Check that [...]

  • Page 8

    8 308178 T roubleshooting W ARNING T o reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 4. Relieve the pressure. Check all possible problems and causes before disassembling the pump or surge suppressor . PROBLEM CAUSE SOLUTION Surge suppressor operates erratically[...]

  • Page 9

    9 308178 Service Servicing the Shaft O-Rings 1. Relieve the pressure. W ARNING T o reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 4. 2. Place a container under the surge suppressor , disconnect the hoses, and turn the surge suppressor on end to drain the fluid. [...]

  • Page 10

    10 308178 Service 6. Place the o-ring (15*) on the bolt (14). Install the lower diaphragm plate (12), with the flat side facing down. 7. Install the diaphragm (13**), making certain that the side marked AIR SIDE is facing up on the bolt. On Models 224892 and 224894 only , install the PTFE diaphragm (21**) first, then the backup diaphragm (13**). 8.[...]

  • Page 11

    11 308178 Service 0905 8 6 9 Chamfer faces out 3 ***16 16*** 7 1 *15** 13** 19* Lubricate with lithium-based grease 11 T orque to 10 to 15 in-lb (1.1 to 1.7 N-m) 2 T orque to 3 to 6 ft-lb (4 to 8 N-m) 31 T orque to 5 to 7 ft-lb (7 to 10 N-m) 14* Apply sealant to threads. 17*** Beveled side faces inward ***18 Flat end faces inward 12* Flat side face[...]

  • Page 12

    12 308178 Parts Drawing 2 T orque to 3 to 6 ft-lb (4 to 8 N.m) Model 224892, Series A, aluminum surge suppressor with PTFE diaphragm Model 224893, Series A, aluminum surge suppressor with buna–N diaphragm Model 224894, Series A, stainless steel surge suppressor with PTFE diaphragm Model 224895, Series A, stainless steel surge suppressor with buna[...]

  • Page 13

    13 308178 Parts Lists Model 224892, Series A aluminum surge suppressor with PTFE diaphragm Model 224893, Series A aluminum surge suppressor with buna–N diaphragm Ref Part No. No. Description Qty 1 100307 NUT , hex; 3/8–16 unc–2b 4 2 100003 BOL T , cap, hex hd; 3/8–16 unc–2a x 1.5” long 4 3 1 1 1203 LOCKW ASHER; 3/8” size 4 4 1 12499 N[...]

  • Page 14

    14 308178 Repair Kits Repair Kits must be purchased separately . Use only genuine Graco parts and accessories . The Ref. No. shown in the kits below correspond to the reference numbers used in the Parts List on page 13. For the best results, use all the parts in the kit, even if the old parts still look good. PTFE Diaphragm Kit D05001 For Models 22[...]

  • Page 15

    15 308178 Dimensional Drawing 0903 height: 8.78 in. (223 mm) width across clamp: 7.38 in. (187.5 mm) inlet-to-outlet length: 7.74 in. (196.6 mm) total length: 8.40 in. (213.4 mm) fluid inlet: 3/4 npt(f) air inlet: 1/4 npt(f) air exhaust muffler: 1/2 npt fluid outlet: 3/4 npt(f)[...]

  • Page 16

    16 308178 T echnical Data Maximum fluid working pressure 100 psi (0.7 MPa, 7 bar) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air pressure operating range 25 to 100 psi (0.18 to 0.7 MPa, 1.75 to 7 bar) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum free flow de[...]

  • Page 17

    17 308178 Notes[...]

  • Page 18

    18 308178 Notes[...]

  • Page 19

    19 308178 Notes[...]

  • Page 20

    20 308178 Graco Standard W arranty Graco warrants all equipment manufactured by Graco and beari ng its nam e to be free from defects in material and workmanship on the da te of sale by an authorized Graco distributor to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, f[...]